2ху+6 у

To simplify the expression \(2xu + 6y\), you can factor out any common factors. However, in this case, there are no common terms between the two parts of the expression. Therefore, the expression remains as is:

\[ 2xu + 6y \]

If you meant to combine or manipulate this expression in a particular way (like factoring or setting it equal to something), please provide more context!